Pet treat ball



FIG. 1 is a perspective view of a pet treat ball showing my new design;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a top plan view of FIG. 1; and,

FIG. 5 is a bottom plan view of FIG. 1. 

CLAIM The ornamental design for a pet treat ball, as shown and described. 